Probing the origin of cosmic-rays with extremely high energy neutrinos using the IceCube Observatory
We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we investigate whether these events could origina...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2013
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| _version_ | 1797061557904998400 |
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| author | Aartsen, MG Abbasi, R Ackermann, M Sarkar, S Collaboration, I |
| author_facet | Aartsen, MG Abbasi, R Ackermann, M Sarkar, S Collaboration, I |
| author_sort | Aartsen, MG |
| collection | OXFORD |
| description | We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we investigate whether these events could originate from cosmogenic neutrinos produced in the interactions of ultra-high energy cosmic-rays with ambient photons while propagating through intergalactic space. Exploiting IceCube's large exposure for extremely high energy neutrinos and the lack of observed events above 100 PeV, we can rule out the corresponding models at more than 90% confidence level. The model independent quasi-differential 90% CL upper limit, which amounts to $E^2 \phi_{\nu_e + \nu_\mu + \nu_\tau} = 1.2 \times 10^{-7}$ GeV cm$^{-2}$ s$^{-1}$ sr$^{-1}$ at 1 EeV, provides the most stringent constraint in the energy range from 10 PeV to 10 EeV. Our observation disfavors strong cosmological evolution of the highest energy cosmic ray sources such as the Fanaroff-Riley type II class of radio galaxies. |
| first_indexed | 2024-03-06T20:32:54Z |
| format | Journal article |
| id | oxford-uuid:31a8c431-2d6b-4dee-8efe-7fb5f01b02d6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:32:54Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:31a8c431-2d6b-4dee-8efe-7fb5f01b02d62022-03-26T13:09:17ZProbing the origin of cosmic-rays with extremely high energy neutrinos using the IceCube ObservatoryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:31a8c431-2d6b-4dee-8efe-7fb5f01b02d6EnglishSymplectic Elements at OxfordAmerican Physical Society2013Aartsen, MGAbbasi, RAckermann, MSarkar, SCollaboration, IWe have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we investigate whether these events could originate from cosmogenic neutrinos produced in the interactions of ultra-high energy cosmic-rays with ambient photons while propagating through intergalactic space. Exploiting IceCube's large exposure for extremely high energy neutrinos and the lack of observed events above 100 PeV, we can rule out the corresponding models at more than 90% confidence level. The model independent quasi-differential 90% CL upper limit, which amounts to $E^2 \phi_{\nu_e + \nu_\mu + \nu_\tau} = 1.2 \times 10^{-7}$ GeV cm$^{-2}$ s$^{-1}$ sr$^{-1}$ at 1 EeV, provides the most stringent constraint in the energy range from 10 PeV to 10 EeV. Our observation disfavors strong cosmological evolution of the highest energy cosmic ray sources such as the Fanaroff-Riley type II class of radio galaxies. |
| spellingShingle | Aartsen, MG Abbasi, R Ackermann, M Sarkar, S Collaboration, I Probing the origin of cosmic-rays with extremely high energy neutrinos using the IceCube Observatory |
| title | Probing the origin of cosmic-rays with extremely high energy neutrinos
using the IceCube Observatory |
| title_full | Probing the origin of cosmic-rays with extremely high energy neutrinos
using the IceCube Observatory |
| title_fullStr | Probing the origin of cosmic-rays with extremely high energy neutrinos
using the IceCube Observatory |
| title_full_unstemmed | Probing the origin of cosmic-rays with extremely high energy neutrinos
using the IceCube Observatory |
| title_short | Probing the origin of cosmic-rays with extremely high energy neutrinos
using the IceCube Observatory |
| title_sort | probing the origin of cosmic rays with extremely high energy neutrinos using the icecube observatory |
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